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Undersink Water Filters & Systems

Keep your kitchen space neat and tidy, while reducing contaminants in your tap water with an under sink water filter system.

The beauty of under sink water filter systems is that they neatly fit underneath your sinks and don’t rob you of valuable counter space as countertop water filters do. Unlike other filter models, with under sink water filters there are no valves or tubing cluttering your counter. Because they remain out of sight, you can install larger under sink water filter models designed to filter out additional water contaminants such as fluorides, arsenic, and nitrates.

Below you’ll find over 60+ OEM under sink water filter systems, housings and filters from some of the top brands, including Pentek®, Culligan®, Whirlpool®, Doulton®, OmniFilter®, and more.

Need help choosing the right under sink water filter system? Our experts can help you choose the perfect under sink water filter to address all of your water quality concerns, just give us a call at 1-800-277-3458.

Items 1 to 48 of 244 total

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  • DUPONT-WFDWC40001

    DUPONT-WFDWC40001

    $22.99 Retail Price:  $29.99
  • CB1-10 Pentek Carbon Block Water Filter Replacement

    CB1-10 Pentek Carbon Block Water Filter Replacement

    $14.99 Retail Price:  $19.99
  • P-12 Under Sink Water Replacement Filter Cartridge by Tier1
  • APDWS1000 Undersink Water Filter System by Aqua-Pure
  • DUPONT-WFDW120009W

    DUPONT-WFDW120009W

    $39.99 Retail Price:  $52.91
  • DUPONT-WFDWC70001

    DUPONT-WFDWC70001

    $33.99 Retail Price:  $45.85
  • DUPONT-WFDWC20001

    DUPONT-WFDWC20001

    $14.99 Retail Price:  $22.33
  • DUPONT-WFHDC8001
  • CMB-510-HF Advanced Water Products 10-inch x 4.5-inch Replacement Sediment Filter
  • OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    OmniFilter RS12-SS6-05 Polypropylene Sediment Filter

    $4.99 Retail Price:  $8.04
  • Pentek QC10-CB1R Carbon Block Quick Change Filter

    Pentek QC10-CB1R Carbon Block Quick Change Filter

    $22.99 Retail Price:  $31.04
  • PENTEK-153017

    PENTEK-153017

    $11.29 Retail Price:  $15.28
  • OMNIPURE-OMB934-1L

    OMNIPURE-OMB934-1L

    $14.99 Retail Price:  $21.38
  • OMNIFILTER-SFM2

    OMNIFILTER-SFM2

    $35.99
  • OMNIFILTER-RS19

    OMNIFILTER-RS19

    $14.99
  • KX-TECHNOLOGIES-32-250-125-050

    KX-TECHNOLOGIES-32-250-125-050

    $9.99 Retail Price:  $10.34
  • KX-MATRIKX-PB1-HD10

    KX-MATRIKX-PB1-HD10

    $59.99
  • KX-MATRIKX-PB1-10
  • KX-MATRIKX-CTO2-10

    KX-MATRIKX-CTO2-10

    $9.99 Retail Price:  $10.34
  • PENTEK-153029

    PENTEK-153029

    $32.99
  • PENTEK-153128

    PENTEK-153128

    $19.99 Retail Price:  $23.56
  • PENTEK-158008

    PENTEK-158008

    $12.79 Retail Price:  $16.55
  • CBR2-10R Pentek Undersink Filter Replacement Cartridge
  • PENTEK-CBR2-10

    PENTEK-CBR2-10

    $16.99 Retail Price:  $18.85
  • PENTEK-CBC-5

    PENTEK-CBC-5

    $11.99 Retail Price:  $16.55
  • PENTEK-C2

    PENTEK-C2

    $5.99 Retail Price:  $8.84
  • PENTEK-C1

    PENTEK-C1

    $6.99 Retail Price:  $9.42
  • PENTEK-BFS-201

    PENTEK-BFS-201

    $53.99 Retail Price:  $56.80
  • PENTEK-3G-SLIM-38-NPT10
  • PENTEK-158643

    PENTEK-158643

    $24.99 Retail Price:  $25.98
  • 158642 Pentek Slim Line Filter Housing - Blue

    158642 Pentek Slim Line Filter Housing - Blue

    $19.99 Retail Price:  $25.29
  • PENTEK-158117

    PENTEK-158117

    $18.99
  • PENTEK-158110

    PENTEK-158110

    $18.99 Retail Price:  $22.41
  • KX-MATRIKX-5-10
  • KX-MATRIKX-1-10

    KX-MATRIKX-1-10

    $10.99 Retail Price:  $14.94
  • KOHLER-K-202

    KOHLER-K-202

    $112.99 Retail Price:  $131.09
  • RS7SS

    RS7SS

    $5.29 Retail Price:  $8.38
  • RS3SS
  • RS2SS

    RS2SS

    $6.99 Retail Price:  $8.04

Items 1 to 48 of 244 total

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